Where she went wrong though was instead of singing it the traditional way, Fergie wanted to try something different, a more sexy version, and we ended up with this:

If you found it hard just watching it on Youtube, imagine what it was like for Jimmy Kimmel or the players on the court trying not to start laughing...

Fergie has since issued an apology to TMZ saying:

I’ve always been honoured and proud to perform the national anthem and last night I wanted to try something special for the NBA. I’m a risk taker artistically, but clearly this rendition didn’t strike the intended tone. I love this country and honestly tried my best.